Legend:

Many of you run your own server/vps that install only 1 copy of each web applications under your server document root, while some other of you, the vhost provider, allow every user install their own copy. For example, [http://www.vbulletin.com/ vBulletin] may be installed under each user's vhost document root. This result in not only disk read/seek without XCache installed, but also consume huge memory for caching them with XCache installed. Most *.php file is bigger after compiled/cached.

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== The Solution ==

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XCache has introduced a way to solve this headache once and for all. This is called content shared hash caching. Whatever it called, let's see what it does.

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XCache has introduced a way to solve this headache once and for all. This is called auto hard linking. Whatever it called, let's see what it does.